Flame photometry

• What is the technique used to identify different metal ions in solution?

  Flame photometry
• What does flame photometry allow you to identify?

  Different metal ions and their concentrations
• What additional benefit does flame photometry provide besides identifying metal ions?

  It produces more lovely colors
• What does every metal ion give in flame photometry?

  A characteristic line spectrum
• How does flame photometry help in identifying ions in dilute solutions?

  It allows identification through unique line spectra
• What does the intensity of the measured wavelength indicate in flame photometry?

  The concentration of that ion in solution
• How can you calculate concentration from intensity in flame photometry?

  Using a calibration curve
• How do you determine the concentration of calcium ions from the intensity?

  Using the calibration curve
• What are the steps to find the concentration of calcium ions using flame photometry?

  1. Find the intensity on the y-axis.
  2. Travel along horizontally to the calibration curve.
  3. Draw a straight line down to the x-axis.
  4. Read off the concentration of calcium ions.
• What is the concentration of calcium ions in the sample mentioned?

  0.25 mol dm⁻³
• How does flame photometry compare to flame tests for identifying substances?

  • Flame photometry identifies multiple ions simultaneously.
  • Flame tests only work for single metal ions.
  • Flame photometry provides quantitative data.
  • Flame tests provide qualitative observations.
• Why is flame photometry more useful than flame tests?

  It identifies multiple ions in mixtures
• What is the unit for concentration in the study material?

  mol/dm³
• What is the primary use of flame photometry?

  To identify different ions in mixtures
• Why is flame photometry more useful than flame tests?

  It identifies different ions in mixtures
• How does a solution containing different ions affect the spectrum produced?

  It gives a unique spectrum for analysis
• What does the combination of spectra for ion X and ion Y indicate?

  It suggests the mixture contains both ions
• What can machines analyze according to the study material?

  Unknown substances
• What is a common application of flame photometry in chemistry?

  Instrumental analysis of substances
• What is a key advantage of using machines for analysis?

  They eliminate human error in results
• What is flame photometry described as in the study material?

  A flaming useful technique
• How does flame photometry compare to flame tests in terms of identifying ions?

  Flame photometry is more precise and versatile
• What is the significance of using flame photometry over traditional tests?

  It allows for faster and more accurate identification
• What are the advantages of using machines in chemical analysis?

  • Very sensitive to detect small amounts
  • Fast and can be automated
  • Highly accurate without human error
• What are the limitations of flame tests compared to flame photometry?

  • Only works for single substances
  • Less sensitive to low concentrations
  • Cannot analyze mixtures effectively
• How does flame photometry enhance the identification of ions in mixtures?

  • Produces unique spectra for each ion
  • Allows comparison against reference spectra
  • Facilitates simultaneous analysis of multiple ions